Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2023-09-13 — TX
Operator
Dixie Pipeline Company Llc
Cause
Other Outside Force Damage
Commodity
Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$2,000,000
Incident datetime
2023-09-13 00:00 UTC
Report number
Location
TX
Narrative
On august 15, 2023 at 09:26, the controller received a call from a contractor stating the crew working in the area may have hit the pipeline. Immediately, hcc dispatched field personnel to investigate. At 09:32, the controller received a leak detection alarm and initiated shut down of the pipeline. Additional operations personnel were dispatched to close manual valves closer to the leak site. At 10:05, field personnel arrived near the site and observed bubbling in the water. At 11:15, enterprise determined that, due to the anticipated repair cost exceeding $50k, the nrc was notified. Review of scada data indicates the initial pressure loss occurred at 09:15. The damaged pipeline was cut-out, replaced, pressure tested and returned to service on september 19, 2023 at 07:49.
Detailed record list
Report Received Date
2023-09-13 00:00:00
Iyear
2023
Report Number
20230212
Supplemental Number
38625
Report Type
Supplemental Final
Operator Id
3445
Name
Dixie Pipeline Company Llc
Operator Street Address
1100 Louisiana St.
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77002
Time Zone
Central
Daylight Savings Ind
Yes
Location Latitude
30.39516
Location Longitude
-91.77217
Commodity Released Type
Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions
Commodity Subtype
Other Hvl
Commodity Details
Propane
Unintentional Release Bbls
900
Intentional Release Bbls
2818
Recovered Bbls
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Notification From Third Party That Caused The Accident
System Part Involved
Onshore Pipeline, Including Valve Sites
On Off Shore
Onshore
Status When Identified
Normal Operation, Includes Pauses Between Batches And During Maintenance
Shutdown Due Accident Ind
Yes
Communication State Fed Ind
Yes
Party Initiated Communication
Operator
Nrc Rpt Num
1376250
Additional Nrc Report Numbers
1376424
Ignite Ind
No
Upstream Action Taken
Valve Closure
Upstream Valve Type Ind
Remotely Controlled
Downstream Action Taken
Valve Closure
Downstream Valve Type Ind
Manual
Num Pub Evacuated
0
Pipe Fac Name
Mont Belvieu To Apex (Main Line)
Segment Name
120
Onshore State Abbreviation
La
Onshore Postal Code
70517
Onshore City Name
Henderson
Onshore County Name
St Landry
Designated Location
Milepost
Designated Name
199.5
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
16
Crossing
Yes
Water Crossing Ind
Yes
Water Type
Uncased
Water Name
Atchafalaya Basin
Water Depth
2
Water Subtype
Below Water, Pipe Buried Below Bottom (Not In Bored/drilled Crossing)
Crossing 100 Feet
No
Pipe Facility Type
Interstate
Item Involved
Pipe
Pipe Type
Pipe Body
Puddle Weld Ind
No
Pipe Diameter
10
Pipe Wall Thickness
0.219
Pipe Smys
52000
Pipe Specification
Api-5l
Pipe Seam Type
Erw - Low Frequency
Pipe Manufacturer
J&l Steel
Pipe Coating Type
Other
Pipe Coating Details
Somastic Coating
Coating Applied Ind
Unknown
Installation Year
1962
Manufactured Year
1962
Material Involved
Carbon Steel
Release Type
Mechanical Puncture
Puncture Axial
1.4
Puncture Circum
1
Wildlife Impact Ind
No
Soil Contamination
No
Long Term Assessment
No
Remediation Ind
No
Water Contam Ind
No
Could Be Hca
No
Commodity Reached Hca
No
Est Cost Oper Paid
0
Est Cost Gas Released
26000
Est Cost Prop Damage
2000000
Est Cost Emergency
90000
Est Cost Environmental
0
Est Cost Other
0
Prpty
2116000
Num Persons Hosp Not Ovnght
0
Num Injured Treated By Emt
0
Num Resident Building Affctd
0
Num Business Building Affctd
0
Accident Psig
280
Mop Psig
1440
Mop Cfr Section
Component Design Pressure �195.406(A)(2)
Maop Established Date
2021-05-29 00:00:00
Maop Reversal Flow Ind
Bi-Directional
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Length Segment Isolated
57499
Internal Inspection Ind
Yes
Operation Complications Ind
No
Pipeline Function
> 20% Smys Regulated Transmission
Scada In Place Ind
Yes
Scada Operating Ind
Yes
Scada Functional Ind
Yes
Scada Detection Ind
Yes
Scada Conf Ind
Yes
Cpm In Place Ind
Yes
Cpm Operating Ind
Yes
Cpm Functional Ind
Yes
Cpm Detection Ind
Yes
Cpm Conf Ind
Yes
Investigation Status
Yes, specify investigation result(s): (select all that apply)
Invest No Control Room Ind
Yes
Invest No Controller Ind
Yes
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Other Outside Force Damage
Cause Details
Other Outside Force Damage
Outside Force Type
Other Outside Force Damage
Osf Other Details
A Marsh Excavator Was Performing Work Related To A Spoil Bank Gapping Project And, While Attempting To Exit The Canal, The Excavator Slid Backwards Down The Bank And Struck The Pipeline With The Tracks Of The Excavator. The Equipment Was Not Performing Excavation At The Time Of The Accident.
Preparer Name
N***** G***
Preparer Title
Senior Pipeline Compliance Specialist
Preparer Email
N****@e****.com
Preparer Telephone
985-493-4629
Prepared Date
2023-10-05 00:00:00
Local Contact Name
N***** G***
Local Contact Email
N****@e****.com
Local Contact Telephone
985-493-4629
Authorizer Name
N*** T*****
Authorizer Telephone
713-381-2493
Authorizer Title
Senior Manager Compliance
Authorizer Email
N*******@e****.com
Narrative
On august 15, 2023 at 09:26, the controller received a call from a contractor stating the crew working in the area may have hit the pipeline. Immediately, hcc dispatched field personnel to investigate. At 09:32, the controller received a leak detection alarm and initiated shut down of the pipeline. Additional operations personnel were dispatched to close manual valves closer to the leak site. At 10:05, field personnel arrived near the site and observed bubbling in the water. At 11:15, enterprise determined that, due to the anticipated repair cost exceeding $50k, the nrc was notified. Review of scada data indicates the initial pressure loss occurred at 09:15. The damaged pipeline was cut-out, replaced, pressure tested and returned to service on september 19, 2023 at 07:49.
| Report Received Date | 2023-09-13 00:00:00 |
|---|---|
| Iyear | 2023 |
| Report Number | 20230212 |
| Supplemental Number | 38625 |
| Report Type | Supplemental Final |
| Operator Id | 3445 PHMSA Enforcement |
| Name | Dixie Pipeline Company Llc |
| Operator Street Address | 1100 Louisiana St. |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77002 |
| Time Zone | Central |
| Daylight Savings Ind | Yes |
| Location Latitude | 30.39516 Google Maps OpenStreetMap |
| Location Longitude | -91.77217 Google Maps OpenStreetMap |
| Commodity Released Type | Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions |
| Commodity Subtype | Other Hvl |
| Commodity Details | Propane |
| Unintentional Release Bbls | 900 |
| Intentional Release Bbls | 2818 |
| Recovered Bbls | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Notification From Third Party That Caused The Accident |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| On Off Shore | Onshore |
| Status When Identified | Normal Operation, Includes Pauses Between Batches And During Maintenance |
| Shutdown Due Accident Ind | Yes |
| Communication State Fed Ind | Yes |
| Party Initiated Communication | Operator |
| Nrc Rpt Num | 1376250 NRC Report How to search |
| Additional Nrc Report Numbers | 1376424 |
| Ignite Ind | No |
| Upstream Action Taken | Valve Closure |
| Upstream Valve Type Ind | Remotely Controlled |
| Downstream Action Taken | Valve Closure |
| Downstream Valve Type Ind | Manual |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Mont Belvieu To Apex (Main Line) |
| Segment Name | 120 |
| Onshore State Abbreviation | La |
| Onshore Postal Code | 70517 |
| Onshore City Name | Henderson |
| Onshore County Name | St Landry |
| Designated Location | Milepost |
| Designated Name | 199.5 |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 16 |
| Crossing | Yes |
| Water Crossing Ind | Yes |
| Water Type | Uncased |
| Water Name | Atchafalaya Basin |
| Water Depth | 2 |
| Water Subtype | Below Water, Pipe Buried Below Bottom (Not In Bored/drilled Crossing) |
| Crossing 100 Feet | No |
| Pipe Facility Type | Interstate |
| Item Involved | Pipe |
| Pipe Type | Pipe Body |
| Puddle Weld Ind | No |
| Pipe Diameter | 10 |
| Pipe Wall Thickness | 0.219 |
| Pipe Smys | 52000 |
| Pipe Specification | Api-5l |
| Pipe Seam Type | Erw - Low Frequency |
| Pipe Manufacturer | J&l Steel |
| Pipe Coating Type | Other |
| Pipe Coating Details | Somastic Coating |
| Coating Applied Ind | Unknown |
| Installation Year | 1962 |
| Manufactured Year | 1962 |
| Material Involved | Carbon Steel |
| Release Type | Mechanical Puncture |
| Puncture Axial | 1.4 |
| Puncture Circum | 1 |
| Wildlife Impact Ind | No |
| Soil Contamination | No |
| Long Term Assessment | No |
| Remediation Ind | No |
| Water Contam Ind | No |
| Could Be Hca | No |
| Commodity Reached Hca | No |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 26000 |
| Est Cost Prop Damage | 2000000 |
| Est Cost Emergency | 90000 |
| Est Cost Environmental | 0 |
| Est Cost Other | 0 |
| Prpty | 2116000 |
| Num Persons Hosp Not Ovnght | 0 |
| Num Injured Treated By Emt | 0 |
| Num Resident Building Affctd | 0 |
| Num Business Building Affctd | 0 |
| Accident Psig | 280 |
| Mop Psig | 1440 |
| Mop Cfr Section | Component Design Pressure �195.406(A)(2) View CFR 49 §192 |
| Maop Established Date | 2021-05-29 00:00:00 |
| Maop Reversal Flow Ind | Bi-Directional |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| Length Segment Isolated | 57499 |
| Internal Inspection Ind | Yes |
| Operation Complications Ind | No |
| Pipeline Function | > 20% Smys Regulated Transmission |
| Scada In Place Ind | Yes |
| Scada Operating Ind | Yes |
| Scada Functional Ind | Yes |
| Scada Detection Ind | Yes |
| Scada Conf Ind | Yes |
| Cpm In Place Ind | Yes |
| Cpm Operating Ind | Yes |
| Cpm Functional Ind | Yes |
| Cpm Detection Ind | Yes |
| Cpm Conf Ind | Yes |
| Investigation Status | Yes, specify investigation result(s): (select all that apply) |
| Invest No Control Room Ind | Yes |
| Invest No Controller Ind | Yes |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Other Outside Force Damage |
| Cause Details | Other Outside Force Damage |
| Outside Force Type | Other Outside Force Damage |
| Osf Other Details | A Marsh Excavator Was Performing Work Related To A Spoil Bank Gapping Project And, While Attempting To Exit The Canal, The Excavator Slid Backwards Down The Bank And Struck The Pipeline With The Tracks Of The Excavator. The Equipment Was Not Performing Excavation At The Time Of The Accident. |
| Preparer Name | N***** G*** |
| Preparer Title | Senior Pipeline Compliance Specialist |
| Preparer Email | N****@e****.com |
| Preparer Telephone | 985-493-4629 |
| Prepared Date | 2023-10-05 00:00:00 |
| Local Contact Name | N***** G*** |
| Local Contact Email | N****@e****.com |
| Local Contact Telephone | 985-493-4629 |
| Authorizer Name | N*** T***** |
| Authorizer Telephone | 713-381-2493 |
| Authorizer Title | Senior Manager Compliance |
| Authorizer Email | N*******@e****.com |
| Narrative | On august 15, 2023 at 09:26, the controller received a call from a contractor stating the crew working in the area may have hit the pipeline. Immediately, hcc dispatched field personnel to investigate. At 09:32, the controller received a leak detection alarm and initiated shut down of the pipeline. Additional operations personnel were dispatched to close manual valves closer to the leak site. At 10:05, field personnel arrived near the site and observed bubbling in the water. At 11:15, enterprise determined that, due to the anticipated repair cost exceeding $50k, the nrc was notified. Review of scada data indicates the initial pressure loss occurred at 09:15. The damaged pipeline was cut-out, replaced, pressure tested and returned to service on september 19, 2023 at 07:49. |
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